Home/ Questions/Q 6153945
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-23T20:10:43+00:00

I’ve a running graph library developed with onDraw plotting the graph using canvas.drawLine methods.

  • 0

I’ve a running graph library developed with onDraw plotting the graph using canvas.drawLine methods. In onTouch I’ve implemented scroll functionality.

Now my customer wants Zoom/Pinch. Is it possible to perform zoom/pinch on such a view without redrawing for these operations?

What is the best way to implement this?

Now next..
How can I display Zooming indicators for this??
I’ve some how managed to display scale of zoom (scaleFactor * 100). How will I show a zooming indicator? I can display static images using canvas.drawBitmap. But is there a more better way?

Any help is appreciated

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Add a pinch zoom capability to the graph:

    How to implement pinch zoom refer : android pinch zoom

    • 0